E21B 47/098
Using impression packers
Official title: using impression packers, e.g. to detect recesses or perforations
E21B47/098 (Using impression packers) appears on 41 US grants and 31 published applications in this corpus.
Search patents in E21B- Granted patents
- 41
- Published applications
- 31
- Assignees
- 21
- Inventors
- 75
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 3 | 3 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 2 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 3 |
| 2024 | 5 | 3 |
| 2025 | 4 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multilateral technologies for wellbores17 Feb 2026US 12,553,289 B2Rokk Energy Technologies Inc.
- Hydrostatic bailer and lead impression block combination tool for downhole fish diagnosis and solids stripping through sample collection30 Sep 2025US 12,428,952 B2Saudi Arabian Oil Company
- Completion nipple identifier tool2 Sep 2025US 12,404,764 B2Saudi Arabian Oil Company
- Sand bailer and lead impression block combination for downhole sample collection and obstruction diagnosis2 Sep 2025US 12,404,765 B1Saudi Arabian Oil Company
- Distributed fiber sensing in a packer for permanent casing and formation deformation monitoring20 May 2025US 12,305,501 B2Saudi Arabian Oil Company
- A system for investigating the condition of a tubular string5 Mar 2026US 2026/0063032 A1
- Sand bailer and lead impression block combination for downhole sample collection and obstruction diagnosis4 Sep 2025US 2025/0277442 A1Saudi Arabian Oil Company
- Hydrostatic bailer and lead impression block combination tool for downhole fish diagnosis and solids stripping through sample collection4 Sep 2025US 2025/0277443 A1Saudi Arabian Oil Company
- Distributed fiber sensing in a packer for permanent casing and formation deformation monitoring31 Jul 2025US 2025/0243752 A1Aramco Services Company
- Completion nipple identifier tool16 Jan 2025US 2025/0020053 A1Saudi Arabian Oil Company
Most cited
By later US patents
- System and method for determining position within a wellbore25US 8,267,172 B2Halliburton Energy Services.Inc. · 2012
- Internal bore impression tool15US 4,616,987 AVetco Offshore Industries, Inc. · 1986
- Method of taking an impression with an internal bore impression tool12US 4,659,530 AVetco Gray Inc. · 1987
- Downhole fish-imaging system and method11US 8,294,758 B2Baker Hughes Incorporated · 2012
- Drill pipe running tool11US 8,403,056 B2Vetco Gray Inc. · 2013